Screw down for rolling mills



June 8 1926. 1,588,146

O. L. SCHLUMPF 1 A SCREW-'Down Fon ROLLING u1u. s

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June 8 1926.

O. L. SCHLUMPF SCREW-DOWN PoR-ROLLING MILLS f which is bQlted to the gear.; Thefgejar .is

Patented June 8,l 1926.

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'DOWN EGR ROLLING application met october-17, 'ieee semi-Na 744,:1571.

'llher :present .invention relates to downs torvrulling mills; Itis Customary :to

opera-teW the .two screws for :adjusting the ripperiroll of aftworehigh fbloom-ing mill fb;y power v.through a transverse shaft having bevel pinions on its ends meshing with nevel piniens associated `with ithe vserews.. The transverse -shaft .has fa. .gear :mounted :thereeny and athepinion: on -one :end of :the

hase sleeveffportien with af-iange .at one end located ina gear housing and is :operatively eenneeted toV .a motel Ier other sonreevef power. When --t ifs diesiredto adinet one of the .screws independently `ef the ether :it is neeeeeary'to remove a ,Partien .et the -sear hgarsing lend. nrlleelt .the .gear ytrete thel :Eig-'mie 1 is a Avertical sectional iview of a embpelying .my invention .ElgureQ isa vertxcalfseetonal. viewer the' perton ef .the screw-down having lny ventien aSSQCaated ftlnerewith,`

'Figure Sis a hnrizental seetononfthe lline VIll-v1.1.1 of 4Eigure 2.,'- end Figures 4; and 5 are detail Yviews .of ele-f ments 0i -.the eenstrneton.. y

Referring to igure 1,- 2 designates ,a

Cross-head and 8 and 4 screws having their threaded-portiens engaging nuts 5 in the cross-head. Mounted'on the cross-head are pinion housings 6 and 7 in which are journaled sleeves 8 and 9. The upper end portions of the screws 3 and 4C are unthreaded and of non-round cross-section. These upper end portions have telescopic engagement with the sleeves 8 and 9. EX- tending between the sleeves 8 and 9 is a horizontal drive shaft 10 having bevel pinions 11 and 12 mount-ed on its ends. This shaft is journaled in bearings 13 and 14 in the pinion housings 6 and 7. The bevel pinion 12 meshes with a bevel pinion 15 which is keyed to the sleeve 9, and the bevel pinion 11 meshes with a bevel pinion 16 which is keyed to thesleeve 8 but is adaptedv tov l bring the shoulders 32 onv the cam elements move axially thereof andV of the screw V3.

Jounnaledontthe sleeve 8 below theberel pinion isa iworrnl gear i7 .engaged hy 1a. worm iliSA on -a zherizontal-shatt 119m This YFarin-rive.sa .seminar cesarean. .er .rrrrennela rnninsrnvnns, .n.jeosPoaA-f i shaft iis j'ournaled 'bearings intheV pinion housing and; has wheel f2@ on .one engl provided with open-ings. '121 dior'v4 receiving pin; @far .turning the fshaftfas showen in ureB.

Referring to' Figuren twill :he eeen that the worm geen 1.7 z-has a series-:ef t'egral cani i elements :#22: projecting nir-ein li nippel" tane and arranged adjaeentzithe periphery of :the fgfear.. lheee earn-eisernen 4have enf,

@lined eurffaees terminating .n .,herzental.

:audaces-2,4, @nemerating .with these earn elements is a ring A25 having iggelvinedsuie faces 26 for cooperation with thefiinnllined surteieee;7 heraental surfaces .f 0r` eeeperatlien with @the .herizentel enraees 2%.;

The 2J nte-rpeeed between .the verm gemeend-the lower' end` of -theqprnon .16- has :a .lng ipregeetlng, :trein the periphery thereof which entende ente tl-.lehreneeesisef,v

tween :two parallel. -veriealfguide flugs .29.

preieeting iframe. wall et .the pinion .heus N ine 6. lt v.will 10e eeearenttftlrat streeton., pernrtethe :25mn be raised' and lowered rbut (prevents it gtroin turning.

'libe warm, :gear 17 Rhas alu'g .,O l,psoies-nir,1g laterally item vene etthereen1-elen-iente .22#` Tlnelng is adapted .ta-.engage a .lngfl projeetngimvan@Hytrein` .e Wall et the pinion housing-6to .2li-,mit .retatien .of tthe Worm ige/.ar

in one direetien iltetetien of the 5wenn; gear .1n the enpesite .direeten .is limited. `by the engagement -,ofthe vertice-f1 .ehem-ders `3.2

Ogf :the earn elenflente, nathl veltcal p shoulders 33 on the'ring`25;` l

Figure 1 illustrates the position of the parts when the pinion 16 is elevated into mesh with the pinion l1 on the shaft 10. In this position of the parts the worm gear 17 has been rotatedv to a position such that the lug 30 is inv engagement with the lug 31, as illustrated by the dottedline position of the lug 30 in Figure 3. Horizontal surfaces24 ofthe cam elements22 are in engagement with the horizontal surfaces 27 ofthe ring 25. Figures 2 and 3 illustrate the positions of the parts when the bevel pinion 16 has been lowered out'of mesh with the bevel pinion 11. In this position of the parts the worm gear 17 has bee-n rotated to 22 into engagement with the shoulders 33 on the ring 25. `With the bevel pinions 11 and 16 out of mesh the shaft 10 can be rotated to adjust. the screw I without effecting adjustment of the screw 3. The shaft lO'has a gear 34: mounted thereon arranged in a gear housing 35 and operatively connected with a motor or any other suitable source 'of power, as usual.

It will be seen that with this construction y one of the screws can lbe very quickly disconnected from the fdrlving connections between the` two screws by simply inserting a pin'in-one of the vopenings in the wheel 2O of the shaft 19 and turning the shaft to rotate the bevell gear 17 into the position' shown in Figures 2 and 3. The bevel pinions 1l and lowering the slidably keyed gear into pair of screws a'sleeve slidably keyed to thev upper ends of the screws, a bevel gear on `each sleeve, one of the'bevel gears being slidably keyed to the sleeve on which it isv carried, a transverse drive shaft having pin-` ions thereon for *engagementv with therespective bevel gears, and means for raising and lowering the slidably'keyed gear into and outof engagement with the driving pinion, substantially as described. Y

2. In a screw-down lfor rolling mills, a pair of screws, a sleeve slidably keyed to the upper ends of the screws, a gear carried on each sleeve, oneof the gears being slidably keyed to the sleeve on which vit is carried, av

driving means operatively interposed between the two gears, and means for raising and out ofk engagement with the said driving means, including a fixed cam element and a movable cam element, bothy surrounding the screw and independent thereof, substantially as described.

3. In a screw-downfor rollingmills, `a pair of screws, a sleeve slidably keyed to the upper ends of the screws, a bevel gear on each sleeve, one `of the `bevel gears being slidably keyed to the sleeve on which it is carried, a transverse drive shaft having pinions thereon for engagement with the re` spective bevel gears, and cooperating cam elements movable relatively to each other for raising and lowering the slidably keyed gear into and out of engagement with its respective driving pinion, substantially as described. f

4:. In a screw-down for rolling vmills, a pair of screws, a sleeve slidably keyed to the upper ends of the screws, a bevel gear on each sleeve, one of the bevel gears being slidably keyed to the sleeve on which it is carried, ya transverse drive shaft yhavingpinions thereon for engagement with the respective bevel gears, a non-rotatable support for the, slidably'keyed gear having a cam element on l its lower face, a rotatable cam member under the support cooperating therewith, and

means for rotating the cam member,"sub

stantially as described.

l5. In a screw-down for rolling mills, a

180 upper ends of the screws, a bevelfgear on?v pair of screws, a sleeve slidably keyed to the each sleeve, one of the bevel gears being slidably keyed yto the sleeve on which it is carried, a transverse drive shaft having pinio'ns thereon for engagementl with the respective bevel gears, a non-rotatable support for the slidably keyed gear having a lcam element on its `lower' face, a rotatable cam member under the support cooperating therewith, and means for rotating the cam member, including aworm tially'as described.

In testimony whereof I have hereunto set my hand. f

gear, substanosoan LQ scHLUMPF. f 

